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Liu Liang
Oncology
About me
Loudi Central Hospital, Oncology Department, attending physician, has been engaged in clinical work in the field of oncology for many years, and has rich clinical experience in the diagnosis and treatment of oncologic diseases.
Proficient in diseases
Specializes in common diseases such as lung cancer, liver cancer, stomach cancer, breast cancer, colon cancer, and lymphoma.
Voices
How is gastric cancer caused?
The causes of gastric cancer are not yet clearly understood. However, its occurrence is associated with poor dietary habits, such as irregular eating—sometimes skipping a meal, sometimes overeating, not having meals on time—and consuming pickled food, barbecued junk food, and other unhealthy dietary practices. Additionally, smoking, alcohol consumption, infection with Helicobacter pylori, chronic gastric diseases such as atrophic gastritis, and genetic factors are all somewhat related to the development of this condition.
Is ovarian cancer hereditary?
The onset of ovarian cancer may be somewhat related to family history or genetic factors. Therefore, patients with a family history of ovarian cancer may have a higher risk of developing the disease compared to the general population. However, this doesn't mean that a patient with ovarian cancer will definitely pass the condition to their offspring; it merely indicates a certain level of heredity. Furthermore, for those with a family history of breast cancer, colon cancer, and endometrial cancer, it is crucial for their descendants to undergo enhanced screenings for ovarian cancer and these diseases, as their risk of developing these conditions may be higher than that of the average person.
Is chemotherapy for prostate cancer painful?
For patients with advanced prostate cancer, endocrine therapy is primarily used. Chemotherapy is generally chosen when endocrine therapy is resistant and ineffective. The side effects of chemotherapy are similar to those of other chemotherapy treatments. The first is the gastrointestinal side effects, such as nausea, vomiting, decreased appetite, or bloating and abdominal pain. The second is bone marrow suppression, which leads to a decrease in white blood cells and platelets. The side effects of chemotherapy vary with each patient's constitution and other factors. In most cases, with the support of medications for stomach protection, anti-nausea, and increasing white blood cells, the majority of patients can generally tolerate the treatment.
Can stomach cancer be cured? Can stomach cancer be cured?
Early-stage gastric cancer patients can undergo curative surgery, and then decide whether postoperative adjuvant radiochemotherapy is needed based on the specific pathological type and the presence of high-risk recurrence factors. Through these treatments, a cure can be achieved. Generally, if there is no recurrence or metastasis within five years, it is considered cured. For example, patients in stage IA, even without adjuvant chemotherapy, have a relatively high five-year survival rate, generally above 90% after curative surgery. However, if it is found to be advanced-stage, such as initial detection showing distant metastases to the liver, lungs, etc., these patients are primarily treated with systemic chemotherapy or symptomatic palliative care. In such cases, a cure is not achievable. Therefore, whether a cure is possible depends on the stage of gastric cancer and factors such as the patient's basic physical condition.
Dietary Taboos for Patients with Pancreatic Cancer
Regarding the dietary restrictions for pancreatic cancer patients, there are no specific prohibitions. The main recommendation is to avoid what we typically refer to as junk food, such as barbecued foods and pickled products. Aside from avoiding these foods, it is important to focus on a nutritious and balanced diet, with a good mix of both meat and vegetables. Additionally, because pancreatic cancer patients may experience symptoms like abdominal pain, nausea, vomiting, and a feeling of fullness or discomfort in the upper abdomen, the diet should primarily consist of light and easily digestible foods. In doing so, while ensuring that the patient receives sufficient nutrition, it is best to consume foods that are easy to digest and nutritionally balanced.
How to check for lymphoma?
Patients with lymphoma generally present with painless enlargement of superficial lymph nodes as their initial symptom, most commonly in areas such as the neck, above the collarbone, and the groin. For diagnostic purposes, it is best, if possible, to conduct a whole-body PADCT scan as this helps in the staging of lymphoma at the initial visit. A definitive diagnosis requires the complete excisional biopsy of the affected superficial lymph node, followed by a pathological examination. An excisional biopsy is a method for confirming the diagnosis of lymphoma.
Symptoms of gastric cancer
Symptoms of gastric cancer include nausea, vomiting, acid reflux, pain in the upper abdomen, and a sense of fullness and discomfort, especially after eating, which are some of the early symptoms. As the tumor progresses, symptoms can worsen, including pain, vomiting of blood, and black stools indicating upper gastrointestinal bleeding. If the tumor is near the pylorus, it can cause pyloric obstruction, which manifests as acid reflux followed by vomiting of undigested food from the previous night. In the late stages of gastric cancer, patients may experience fatigue, weight loss, severe cachexia, and anemia. These are symptoms of advanced gastric cancer.
Is there a difference between colon cancer and rectal cancer?
Colorectal cancer includes rectal cancer and colon cancer. Its clinical manifestations may include rectal bleeding, changes in bowel habits, and changes in stool shape. It is named according to the specific location of the tumor. For example, if the malignant tumor occurs in the rectum, it is called rectal cancer. If it occurs in the transverse colon, descending colon, sigmoid colon, and ascending colon, these malignant tumors are called colon cancer. Colon cancer and rectal cancer are collectively referred to as colorectal cancer.
What should be done if pancreatic cancer has not metastasized?
If pancreatic cancer has not metastasized, then it might be in an early stage. In this situation, consultation with a hepatobiliary surgeon is necessary for the surgeon to assess whether curative surgery can be performed. If the surgeon determines that curative surgery is feasible, this should be the preferred treatment method. Post-operatively, based on whether there are symptoms of recurrence or metastasis, such as vascular tumor thrombi or lymph node metastases, decisions concerning the necessity for adjuvant radiotherapy or chemotherapy should be made based on these high-risk factors for recurrence and metastasis.
What tests are used to check for rectal cancer?
When clinical symptoms such as diarrhea or constipation, changes in bowel habits, bloody stools, and abdominal pain occur, we should be vigilant about the possibility of rectal cancer. The examination for rectal cancer can start with a digital rectal exam, especially for low-lying rectal cancer, which is closer to the anus; these tumors can be detected through this method. Then, a colonoscopy should be performed to take a biopsy to confirm the diagnosis, which is the gold standard for confirmation. Additionally, blood tests for tumor markers can be conducted. Generally, carcinoembryonic antigen (CEA) and CA199 levels may be elevated, but this is not absolute as their specificity and sensitivity are not very high. An enhanced CT scan of the abdomen can also be done. In such scans, we can see thickening of the intestinal wall where the tumor is located, and the enhancement can show the intensified thickening of the intestinal wall. Combining all these methods can confirm the diagnosis of rectal cancer.